PRACTICAL HINTS. 109 



15. — The larva of Lita {(i dec hi a) jilautai/iudla l)urro\v.s in the root 

 of Vlantaiid rtiidiKi/ius, and chani^os therein to a pupa. Its presence is 

 indicated by a small heap of pale brown frass on the crown of the 

 plant, sometimes partly hidden by the leaves ; full-fed at end of April 

 or early in May. 



16. — The larva of Lita {(iclechia) siiacdclla spins down the small 

 fleshy leaves of Snarda fruticoso to the stem, thereby concealing its 

 presence. It is full-fed about the middle of May, and pupates in the 

 sand or mud below the plant. 



17. — The larva of Lita [Geledda) leiicomelanella feeds in the shoots 

 of Siloif maritiina, sometimes spinning them down to the stones below, 

 or burrowing down them for a short distance. It leaves its burrow 

 before pupation, and is full-fed in May. 



18. — The imago of Stci/anopti/c/ia auhsciimina should be looked for 

 amongst silver fir or spruce at the end of April. In the day-time it 

 seems most inclined to fly in the early afternoon, when it may be 

 beaten out of the trees, and it also flics naturally at dusk. 



19. — The time to get the nearly full-fed larva? of ( 'ulcophoya anati- 

 pi'nndla is at the end of April, when the leaves of the sloe are beginning 

 to shGot. They are then most easily seen. 



20. — The larvae of the first brood of Batijs asinalifi may be found 

 on Itubia peir;irina in May, but require a little searching for, though 

 their eating is conspicuous. They will eat Galium aparine in confine- 

 ment, if their food- plant is not procurable. 



21. — The larva of Kphippiphora rirsiana may be found through the 

 winter in the old Howering stems of Inula (hjiicntcrica, just below the 

 surface of the ground, as well as in other plants. 



22. — Roots of yarrow, collected in April or earlier, may contain the 

 larvje of 1 >icr<)iaiiiplia jiolitaiia, l>. phunbana or D. plumbaiiana. 



28. — The small cases of Tinea vinculdla, resembling in shape un- 

 usually well-made cases of T. pdliondla, may be found up to the end 

 of May, on the undersides of stones, feeding on a microscopic lichen, 

 but are hard to see, as they are so like their food in colour. This 

 species occurs in Portland and Purbeck, and will not improbably be 

 found elsewhere on limestone rocks on the coast, if carefully looked 

 for. The imago is hardly ever seen at large. 



24. — The larva of I'si/rlioidc'i verliudlella mines in the leaves of 

 hartstongue fern, especially amongst the sori, in April and May. Also 

 in Hutu inuraria. 



25. — The green spindle-shaped larva of I'lutdla annulatdla lives 

 amongst the flowers or buds of i'ncldcaiia, spinning them slightly 

 together. It is very inconspicuous, but very lively when touched. 



20. — The larvje of JJucculati i.r cii.statdla nibble the leaves of 

 yarrow, causing the bitten edges to turn brown, which betrays their 

 presence. The beautiful ribbed whitish cocoon is spun irregularly 

 across the front of the leaf, and may be found in May. 



27. — The larva of Lanrna (icliracirlla mines longitudinally in stems 

 of Kpilitbiunt liirsittuin. About May it leaves the main stem, and 

 mines up a leaf-stalk into a leaf, where it makes a long and rather 

 tough cocoon in its mine, which may easily bo found by examination. 



N.B. — For series of similar hints referring to the same time of the 

 year, refer to vol. ix., pp. 95-97, vol. viii., pp. 20-21, vol. iv., pp. 51- 

 52, vol. i., pp. 2y.21 and pp. 17-lb. 



